I did not have the discipline to hold for the time periods necessary to achieve good results. The hyper-volatility would consistently shake me out of positions because I would use a mental stop-loss of 6-8% with each position. Additionally, the time delay or one-day "lag" using these funds would eliminate a considerable amount of any profit with swing trades in either direction.
If sure someone out there uses this strategy successfully and profitably -- it just didn't work for me.